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Post here if you experience file transfer problems or unexpected errors.
I am trying to transfer a file to an sftp site and I make the connection and run the PUTFILE and you can see the green bar move about 1/3 of the way and then stops waits about 5 minutes and then give the following:

Uploading ,,,,, D:\TEMP\test.xml
******* PUTFILE error #15000
******* Timeout occurred due to inactivity

I can transfer this file using WINScp and FileZilla but prefer to use SCRIPTftp and have
successfully done this exact thing with other systems.
If there a max limit to the file size or could there be something in the file that is causing the error?

Any ideas would be appreciated.
No, there is no max file size. It seems that the firewal or something has blocked the connection. Are you using a different port or active mode or something else?